CN207049024U - A kind of novel well immersible pump fluidic structures - Google Patents

Abstract

A kind of novel well immersible pump fluidic structures, the water pump monomer composition being connected on by several on pump shaft, water pump monomer includes impeller, pump case and pump cover, impeller includes footstalk, upper cover plate, lower cover and blade, pump case includes pump case cylinder and pump case blade, the footstalk upper and lower ends are respectively equipped with upper extension and lower extension more than upper cover plate and lower cover plate surface, there is certain gap between the upper extension of two neighboring impeller and lower extension, the impeller spacer being enclosed on pump shaft is provided with gap, pump case blade interior edge is provided with bulge loop, rubber ring is enclosed on bulge loop by opening up the groove to match with bulge loop in outer wall；Upper extension is externally provided with axle sleeve inserts.Fluidic structures design of the present utility model takes into account single-stage and floated and overall the advantages of floating, and assembling is convenient to require low, and impeller is not easy to wear, improves service life.

Description

A kind of novel well immersible pump fluidic structures

Technical field

It the utility model is related to immersible pump equipment technical field, more particularly to a kind of novel well immersible pump fluidic structures.

Background technology

Immersible pump is the visual plant of deep-well water lift.Whole unit is pulled the plug work during use, and underground water is extracted Earth's surface, it is that domestic water, mine are speedily carried out rescue work, industry cooling, field irrigation, seawater lift, steamer are adjusted and carried, it may also be used for fountain scape See.

Immersible pump is typically by fluidic structures（Multi-stage impeller group）, submersible motor（Including cable）, water-supply-pipe and controlling switch Four most of compositions.Wherein, during immersible pump use, according to the size of flow lift, fluidic structures have certain upper Lower floating, existing fluidic structures are broadly divided into single-stage floating structure and overall floating structure, and still, single-stage, which floats to exist, uses one The problem of damage in impeller is serious after the section time, and it is overall float exist impeller or miscellaneous part on business it is poor it is accumulative can not assemble or Underproof problem is assembled, very high is required to the size of impeller and other each parts, improves production difficulty.

Utility model content

The purpose of this utility model is the deficiency for solving above-mentioned existing apparatus, there is provided a kind of novel well immersible pump fluid knot Structure, good airproof performance, while have both radiating and lubricating function.

To reach above-mentioned purpose, the technical solution adopted in the utility model is as follows：

A kind of novel well immersible pump fluidic structures, the water pump monomer composition being connected on by several on pump shaft, water pump list Body includes impeller, pump case and pump cover, and impeller includes footstalk, upper cover plate, lower cover and blade, and blade is in the arc with certain curved surface Shape structure, upward thrust is produced during rotation to water, pump case includes pump case cylinder and pump case blade, and pump case blade is with to current The effect of guiding.The footstalk upper and lower ends are respectively equipped with upper extension and lower extension more than upper cover plate and lower cover plate surface Section, after mounting, there is certain gap between the upper extension of two neighboring impeller and lower extension, be provided with and be enclosed in gap Thickness is less than the impeller spacer of clearance height on pump shaft.Impeller by footstalk can with pump shaft synchronous axial system, but in the axial direction can on Lower floating, domain of walker can be in the single floats in two impeller adjacent segments, after floating exceedes gap, each impeller Footstalk offsets down through impeller spacer, forms overall float.Therefore, it is not straight all the time between two impellers in rotation process Contact, mitigates damage in impeller significantly.

Wherein, the pump case blade interior edge is provided with bulge loop, and provided with rubber ring, rubber ring in outer wall by opening up and bulge loop phase The groove of matching is enclosed on bulge loop, and the upper extension is externally provided with axle sleeve inserts.Axle sleeve inserts uses stainless steel, impeller and It is not directly contacted between pump case blade, but has the interval of rubber ring and axle sleeve inserts, when avoids wheel rotation directly and pump The friction of shell blade, there is provided useful life longevity.

Preferably, the axle sleeve inserts lower edge has horizontal-extending section, the outer ring of extension is in the lower surface of rubber ring In the range of, avoid impeller upper cover plate surface and directly contact friction with pump case blade.

Preferably, the impeller spacer outer ring makes impeller spacer to be erected at rubber in the range of the upper surface of rubber ring On cushion rubber, on the one hand avoid impeller spacer and pump case blade from directly contacting friction, axial limiting on the other hand is played to impeller Effect.

Preferably, the lower extension lower end offers counterbore, the contact area of lower extension and impeller spacer is reduced, Reduce frictional force.

Preferably, the pump case cylinder upper and lower ends offer the outer groove and inner groove that can splice mutually respectively, make Simple, sound construction must be assembled.

Preferably, the depth of the inner groove is more than the depth of the outer groove, have after splicing in inner groove bottom Gap, the outer of pump cover are placed in gap.The height in gap is identical with pump cover thickness, and two groove structures clamp to pump cover It is fixed.

Preferably, the lower cover inner ring has downward bending segment, the pump cover lower surface and pump case blade upper table Face offsets, and pump cover upper surface offsets with bending segment lower surface, and pump cover inward flange is in the range of bending segment lower surface, i.e. pump cover Diameter of bore is between the inner and outer diameter scope of bending segment lower surface, also non-bulging bending segment inner ring.Make with good sealing With the passage flowing for designing current edge.

Preferably, the pump cover has certain elasticity.Specifically, it is that pump cover interior edge is remained and is close under impeller It the bending segment lower surface of cover plate, can be reached by the construction of itself, can also be reached by the pressure of current, improve sealing Property.Current are avoided to be flowed out from the gap of pump cover and lower cover.

The beneficial effects of the utility model are：Fluidic structures design takes into account single-stage and floated and overall the advantages of floating, dress Require low with convenient, impeller is not easy to wear, improves service life, reduces production difficulty.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the enlarged diagram at A in Fig. 1；

Fig. 3 is the partial schematic diagram after pump cover assembling in the utility model.

In figure：1st, footstalk；1.1, upper extension；1.2nd, lower extension；1.3rd, counterbore；2nd, upper cover plate；3rd, lower cover；3.1、 Bending segment；4th, blade；5th, pump case cylinder；5.1st, outer groove；5.2nd, inner groove；6th, pump case blade；6.1st, bulge loop；7th, impeller pad Piece；8th, rubber ring；9th, axle sleeve inserts；10th, pump cover；11st, gap；12nd, pump shaft.

Embodiment

The utility model is further described below by embodiment and accompanying drawing.

Embodiment is：As depicted in figs. 1 and 2, a kind of novel well immersible pump fluidic structures, pump is connected on by several Water pump monomer composition on axle 12, water pump monomer include impeller, pump case and pump cover 10, impeller include footstalk 1, upper cover plate 2, under Cover plate 3 and blade 4, pump case include pump case cylinder 5 and pump case blade 6, and the upper and lower ends of footstalk 1 are respectively equipped with more than the He of upper cover plate 2 The upper extension 1.1 on the surface of lower cover 3 and lower extension 1.2, upper extension 1.1 are externally provided with axle sleeve inserts 9, lower extension 1.2 Lower end offers counterbore 1.3.There is certain gap 11 between the upper extension 1.1 of two neighboring impeller and lower extension 1.2, It is provided with gap 11 and is enclosed on the impeller spacer 7 that thickness on pump shaft 12 is less than the height of gap 11.The interior edge of pump case blade 6 is provided with bulge loop 6.1, provided with rubber ring 8, rubber ring 8 is enclosed on bulge loop 6.1 by opening up the groove to match with bulge loop 6.1 in outer wall.

Wherein, the lower edge of axle sleeve inserts 9 has horizontal-extending section, the outer ring of extension in the range of the lower surface of rubber ring 8, The outer ring of impeller spacer 7 is in the range of the upper surface of rubber ring 8.

With reference to shown in Fig. 3, the upper and lower ends of pump case cylinder 5 offer the outer groove 5.1 and inner groove that can splice mutually respectively 5.2, and the depth of inner groove 5.2 is more than the depth of the outer groove 5.1, has gap in the bottom of inner groove 5.2 after splicing, In addition, the inner ring of lower cover 3 has downward bending segment 3.1, after mounting, the outer of pump cover 10 is placed in gap, under pump cover 10 Surface offsets with the upper surface of pump case blade 6, and the upper surface of pump cover 10 offsets with the lower surface of bending segment 3.1, and the inward flange of pump cover 10 exists In the range of the lower surface of bending segment 3.1.The upper-lower position of outer groove 5.1 and inner groove 5.2 can be replaced mutually.

In addition, the pump cover 10 in present embodiment can have certain elasticity, even fluidic structures are in quick condition Under, the interior edge of pump cover 10 also offsets with the lower surface of bending segment 3.1 all the time, improves sealing effectiveness.

The fluidic structures of present embodiment have two kinds of different quick conditions：

Single-stage quick condition：In the range of certain flow lift, impeller floats in the range of gap 11, two impellers it Between do not produce it is axially contact.

Overall quick condition：After more than certain flow lift, impeller, which floats, exceedes gap 11, leads between two impellers The mediate contact of impeller spacer 7 is crossed integrally to float.

Specific embodiment of the utility model is the foregoing is only, but architectural feature of the present utility model is not limited to This, the utility model can be used on similar product, and any those skilled in the art is in field of the present utility model, institute The change or modification of work are all covered among the scope of the claims of the present utility model.

Claims (8)

1. a kind of novel well immersible pump fluidic structures, pump shaft is connected on by several（12）On water pump monomer composition, water pump Monomer includes impeller, pump case and pump cover（10）, impeller includes footstalk（1）, upper cover plate（2）, lower cover（3）And blade（4）, pump case Including pump case cylinder（5）With pump case blade（6）, it is characterised in that：The footstalk（1）Upper and lower ends are respectively equipped with more than upper cover plate （2）And lower cover（3）The upper extension on surface（1.1）With lower extension（1.2）, the upper extension of two neighboring impeller（1.1） With lower extension（1.2）Between there is certain gap（11）, gap（11）Interior be provided with is enclosed on pump shaft（12）Between upper thickness is less than Gap（11）The impeller spacer of height（7）；

The pump case blade（6）Interior edge is provided with bulge loop（6.1）, provided with rubber ring（8）, rubber ring（8）By outer wall open up with Bulge loop（6.1）The groove to match is enclosed on bulge loop（6.1）On；

The upper extension（1.1）It is externally provided with axle sleeve inserts（9）.

A kind of 2. novel well immersible pump fluidic structures according to claim 1, it is characterised in that：The axle sleeve inserts （9）Lower edge has horizontal-extending section, and the outer ring of extension is in rubber ring（8）Lower surface in the range of.

A kind of 3. novel well immersible pump fluidic structures according to claim 1, it is characterised in that：The impeller spacer （7）Outer ring is in rubber ring（8）Upper surface in the range of.

A kind of 4. novel well immersible pump fluidic structures according to claim 1, it is characterised in that：The lower extension （1.2）Lower end offers counterbore（1.3）.

A kind of 5. novel well immersible pump fluidic structures according to claim 1, it is characterised in that：The pump case cylinder （5）Upper and lower ends offer the outer groove that can splice mutually respectively（5.1）And inner groove（5.2）.

A kind of 6. novel well immersible pump fluidic structures according to claim 5, it is characterised in that：The inner groove （5.2）Depth be more than the outer groove（5.1）Depth, in inner groove after splicing（5.2）Bottom has gap, pump cover（10） Outer be placed in gap.

A kind of 7. novel well immersible pump fluidic structures according to claim 6, it is characterised in that：The lower cover（3） Inner ring has downward bending segment（3.1）, the pump cover（10）Lower surface and pump case blade（6）Upper surface offsets, pump cover（10） Upper surface and bending segment（3.1）Lower surface offsets, and pump cover（10）Inward flange is in bending segment（3.1）In the range of lower surface.

A kind of 8. novel well immersible pump fluidic structures according to claim 7, it is characterised in that：The pump cover（10）Tool There is certain elasticity.